baber/WOPTO huggingface dataset:
Patent GB-1133149-A (GB)
Title: Improvements in disc brakes, in particular for automobile vehicles
IPC: F16D65/097
Filed: 1966-12-21
Abstract: 1,133,149. Disc brakes. SOC. ANON. ANDRE CITROEN. 21 Dec., 1966 [29 Dec., 1965], No. 57319/66. Heading F2E. In a disc brake having a pair of pads engageable with opposite faces of a disc 1 and wherein each pad or, as shown, its backing-plate 10, is formed with a pair of arcuate surfaces 12, 13 which are concentric about a common centre X and which engage corresponding arcuate surfaces 14, 15 formed on abutment members 16, 18, such that the pad is capable of limited pivotal movement about the centre X to enable removal of the pad from the caliper frame 2, the pads are normally retained in their operative positions by a wire spring 23 having a central portion 23a, extending across the frame, and arms each of which terminates in an end portion 23f which is engaged in a slot 29 in a lug 28 formed integrally with the respective backing- plate. Each lug 28 is formed as an enlargement of a stem 17 which engages the abutment 18 to locate the pad. The lug is shaped to deflect the depending portion 23e of the spring arm outwardly when the pad is being pressed up into position against the abutment 18 so that the end portion 23f snaps into the slot 29. Each spring arm also includes a coil 23d and a horizontal section 23c, the latter being guided in a groove 24 in the frame. A slot 27 and a co-operating vertical slot in the frame guide the end portion 23f and depending portion 23e of the spring arm, respectively. The abutments 16, 18 are formed by rods carried by the respective one of a pair of members (2a, 2b, Fig. 3, not shown) which are connected by bolts 5 to form the frame. A second pair of pads 20 are provided for independent application by a hand brake linkage including a pair of floating levers 19. Vibration of the pads 20 is minimized by providing in association with each pad a spring 30 bearing against its edge. The spring 23 exerts sufficient force to both prevent vibration of the pads 3 and prevent accidental detachment of the end portions 23f from the slots 29 during use of the brake.
Patent GB-1206414-A (GB)
Title: Pressure operated actuator
Inventor: ANDERSSON ERIK EDVARD
IPC: F15B15/10
Filed: 1967-12-19
Abstract: 1,206,414. Vehicle braking systems. E. E. ANDERSSON. 19 Dec., 1967 [20 Dec., 1966; 19 Oct., 1967], No. 57683/67. Heading F2F. [Also in Division F1] An actuator rod 2, Fig. 1, is urged axially, e.g. to the right by hydraulic pressure acting on the left-hand face of each of at least two flexible diaphragms 5 secured at their reinforced central areas to the rod at spaced distances therealong; the diaphragms being sealingly held at 19a, 19b at their peripheries by rigid stationary dished metal plates 7, 8 surrounded by a casing 1 and the pressure fluid being admitted through a casing port 12 and apertures 7b in the extreme left-hand plate 8 to a chamber 6 bounded by the left-hand diaphragm 5 which is thereby urged to the right, and the pressure fluid also being fed to the chambers 6 on the left-hand face of each of the succeeding diaphragms 5 through spaces between the casing 1 and seals 19a, 19b and apertures 7b in the plates 8. To urge the diaphragms 5 and hence rod 2 to the left, pressure fluid is admitted through a port 13 to a chamber 9 bounded by the end wall of the casing and the right-hand diaphragm 5, and fluid also passes through a radial port 2b in rod 2, along a longitudinal slot 2c and radial ports 2b to the remaining chambers 9, thereby flexing all three diaphragms. Fig. 2 shows a vehicle brake actuator wherein the rod 2 is connected to a rod 20 which acts on a brake fork 21 connected to a piston 23 biased to the right by a spring 24 when supply of compressed air through a port 25 is interrupted thereby applying parking brake. In normal operation compressed air holds the piston 23 against spring 24, and on application of hydraulic pressure through port 12 to chambers 6, which on the right-hand side are bounded by diaphragms 5 the rod 2 is moved to the right. Return is effected by a spring 27.
Patent GB-1389657-A (GB)
Title: Dc-to-dc converters
IPC: H02M3/338
Filed: 1970-12-09
Abstract: 1389657 DO-DC converters GENERAL ELECTRIC CO Ltd 9 Dec 1971 [9 Dec 1970] 58454/70 Heading H2F [Also in Divisions G1 and G3]  In a DC-DC converter of the type in which the output of a transistor oscillator 6, 1, is rectified, an output parameter is stabilized with the aid of an amplifier 24 having a first input supplied with a voltage indication of said parameter and a further input supplied with a reference voltage derived by rectifying a voltage induced in a winding 2 other than the output winding 4. The reference voltage can thus be independent of the input or output voltage. As described, the transistor oscillator 6, 1, is driven by 1-3 V at 5, 7 and provides a rectified output at 12, 13 of 133 V. This voltage is stabilized by comparing the voltage of the slider of potentiometer 28 with 6À2 V across Zener diode 22. Variation in output voltage thus results in corresponding variation in the resistance of transistor 17 and in the energy supplied by transistor 6 o the transformer 1. A potential divider may be connected across 7, 21 and switched to the stabilizing transistor 24. A rectified output may also be obtained from an isolated winding. The converter may be used as an insulation/resistance tester by including a 400 ÁA instrument 30 (calibrated in megohms) and zero adjuster 32.
Patent GB-1369017-A (GB)
Title: Mobile communication systems
IPC: H04W36/12
Filed: 1971-12-17
Abstract: 1369017 Automatic exchange equipment WESTERN ELECTRIC CO Inc 17 Dec 1971 [21 Dec 1970] 58604/71 Heading H4K In a communication system for mobile subscribers an alternative path is established through switching means when a mobile subscriber moves from one transmitter area to another transmitter area so that there is no break in the communication path. A plurality of cells 1, 2, 8 each containing a fixed radio centre make up the whole area within which mobile subscribers can be called by alerting radio 40. Each cell radio centre includes a directional aerial array which can collect signals emanating from a mobile subscriber and by comparison of the received signals in each direction the processor 46 in the mobile station controller 4 can determine which cell contains that mobile. The cells are connected by control lines to controller 4 and by speech lines to a mobile switching central office (exchange) MSCO5 which is connected to the telephone network 7. Adjacent cells use different radio frequencies for their transmissions and thus the mobile transmitter/receiver must be tunable automatically to a new frequency when moving between areas. It is also necessary that the new cell radio is connected to the caller before the original cell radio is released in order to provide continuity of connection. In the MSCO a dual access trunk is provided as well as junctors so that each radio centre can be connected to an outgoing line. The control 50 is stated to be of the No. 1 E.S.S. type. In the connection shown in Fig. 1, the mobile subscriber MS1 in cell 1 is connected through line 110, dual access trunk 53, trunk 55 to subscriber LL2. If the mobile subscriber now moves into cell 2 a connection is set up from line 210 to the second appearance of the dual access trunk in the switching network and a two-way radio connection from radio centre 2 to mobile MS1, see Fig. 5C. Once this alternative connection is complete the correction between line 110 and the dual access trunk can be broken within the switching network 51. If the mobile MS1 now moves into cell 8 a connection is made through MSCO 6, trunk 657 and junctor 58 to the dual access trunk 53 and the previous connection dropped, see Fig. 5D.  For communication between two mobile subscribers each one will be connected to a dual access trunk via the network 51 and the necessary interlinking will occur in the junctors 54, 58, Figs. 5E and 5F (not shown).
Patent GB-1272860-A (GB)
Title: Improvements relating to pulse counters
Inventor: KREBS PETER ERIC
IPC: H03K21/08
Filed: 1969-12-01
Abstract: 1,272,860. Dynamic counter read - out. SOLARTRON ELECTRONIC GROUP Ltd. 13 Nov., 1970 [1 Dec., 1969], No. 58624/69. Heading G4A. A counter having p cascaded stages, each of which includes m binary circuits arranged to count in a system of radix n (n greater than 2), is associated with a gating arrangement for converting the counter to a binary shift register so that dynamic read-out may be obtained from one stage by applying successive groups of m shift pulses to the register. Each stage may be a decimal stage having five binary circuits connected as a shift register in a Johnson ring, the final circuit being connected to the first circuit by an inverter 13 and switch 14, and input pulses 16 being applied to the shift input 15 of the units stage. To read out, switches 14 are changed over to form a p x m stage shift register, if desired with a recirculation loop via switch 20, and shift pulses are supplied at 19 to all the shift inputs 15. As each decimal digit is located in the pth stage, counter 24 energizes a corresponding output 26 identifying the digit order, and a decoded decimal output is obtained at 31, e.g. for application to display tubes selected in sequence by outputs 26. If the input pulses are derived in a digital voltmeter it may be desired to obtain a centre zero read-out, and to this end the counter is initially reset to 10p/2 by applying fast pulses 35 until the stage p registers all l's (= 5). During operation, when each stage 10 registers a count of 9, circuit 33 adds one pulse to reset all stages to zero and a polarity flip-flop 34 is reset to change switches 29 back to their normal position, the counts from 50... 0 to 99 ... 9 being converted to the 9's complement by these switches.
Patent GB-1298140-A (GB)
Title: Driving mechanisms for moving stairways
Inventor: KOJIMA MIKIHARU
IPC: B66B23/02
Filed: 1970-12-10
Abstract: 1298140 Escalators TOKYO SHIBAURA ELECTRIC CO Ltd 10 Dec 1970 [10 Dec 1969 20 Jan 1970] 58663/70 Heading B8A A driving mechanism for a moving stairway includes a longitudinally extending truss 3, a shaft 11 which is rotatably driven by a motor (19) through a sprocket 18, Fig. 1 (not shown), the ends of said shaft 11 terminating in spaced relationship to the inner walls of the truss 3, a wheel 5 mounted adjacent each end of the shaft 11 for driving the stairway handrails 1 and two sprocket wheels 12 for driving the stairway steps 13, the shaft 11 being mounted on bearings 10 mounted on arms 9 extending from a frame 8 secured to the truss 3.
Patent GB-1338096-A (GB)
Title: Governors for diesel engines
IPC: F02D41/38
Filed: 1970-12-11
Abstract: 1338096 Automatic control of speed ROBERT BOSCH GmbH 11 Dec 1970 [13 Dec 1969] 58843/70 Heading G3R In an electronic governor for a diesel engine, in which signals representative of desired and actual speed respectively are applied to a control unit whose output adjusts the setting of a fuel injection pump, the transducer for producing the actual speed signal includes an inverter so that this input to the control unit is inversely proportional to speed and any failure resulting in this signal being a minimum value results in a reduction in the fuel supply. The control unit 4, 5 compares signals from an engine speed transducer 1 and an accelerator position transducer 12, the difference being applied to an operational amplifier 3 the output of which is power amplified at 5 and operates an injection regulator 8 via a speed limiter 6 and actuator 7. The output voltage of 5 is high for low injection quantities and vice versa. Regulator position feedback is applied to amplifier 5 by a transducer 23 which is also arranged to "fail safe". The transducers 12 and 23 are supplied with A.C. from an oscillator 21. The speed transducer Fig. 4, (not shown) produces pulses which are applied to a Schmitt trigger connected to a monostable multivibrator. The "off" periods of this are used so that the speed signal now consists of a train of pulses of variable frequency at constant spacing, i.e. their width varies, and this is integrated to produce a voltage corresponding to the inverse of speed which is applied to the input resistor of the operational amplifier 3. Separate potential dividers Fig. 6 (not shown), are effective at high and low speeds respectively to so bias diodes that respective shunting resistors are applied across the input resistor, thereby lowering the gain of the operational amplifier at these speeds. The accelerator transducer 12 is connected to a transistor circuit arranged between two potential dividers which set upper and lower limit values for the desired speed signal voltage, voltages between these limits depending upon the accelerator setting. The arrangement is such that low speed and accelerator voltages as applied to the unit 4 both produce low fuel injection. The output of the operational amplifier is connected through a diode to a further potential divider which limits the output voltage and hence the fuel injection to a value below the point at which smoke is produced. The maximum fuel which can be supplied is also modified according to engine speed by using the speed voltage to regulate a transistor in a further diode and potential divider network, the circuit values being adjustable to suit any particular engine.
Patent GB-1211100-A (GB)
Title: Improvements in welding multi-layer film strip
IPC: B29C65/40
Filed: 1967-12-29
Abstract: 1,211,100. Seaming non-metallic sheet material. ZELLSTOFFFABRIK WALDHOF. 29 Dec., 1967 [31 Dec., 19661, No. 59020/67. Heading B5K. A plurality of films of a thermoplastic material arranged in an overlapping manner to provide inner adjacent films and an outer film or films are joined together by inserting between the inner films a filament or strip of a thermoplastic material heated to a temperature which is sufficient to join the inner films thereto, each inner film being thereby heated to such a temperature that a weld is effected between each inner film and an associated outer film, the temperature of the filament or strip being such that the weld between an inner and outer film is formed without destruction of the inner film. The joint is pressed by rollers which may be cooled. The filament or strip may be of the same or of a different material to the material of the sheets and may be of a circular, elliptical, rectangular or serrated cross-section. Preferably, the filament or strip material has a higher melt index than the material of the sheets. One or more of a plasticizer, mould release agent, antioxidant, pigment or dyestuff may be added to the material of the filament or strip. Specified films are polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, mixed polymers or mixtures of polymerizates. In the example, two superimposed polyethylene films are longitudinally seamed to form a tube with a polyethylene filament between the overlapping edges thereof.
Patent GB-1398700-A (GB)
Title: Device for the production of a beam of solid particles
IPC: H01J27/02
Filed: 1973-12-31
Abstract: 1398700 Pneumatic conveyers COMMISSARIAT A L'ENERGIE ATOMIQUE 31 Dec 1973 [11 Jan 1973] 60242/73 Heading B8A Material enters a gas tight vessel from a tank, gas under pressure enters the vessel below a horizontal porous partition and material entrained by gas leaves the vessel through a duct in the upper portion thereof. In the figure, as part of a device for the production of a beam of neutral particles or multiply charged heavy ions by neutralization of charged particles of an incident beam or addition of charges to said particles, powder is contained in tank 16 and enters vessel 2 by gravity via valve 19. Porous wall 8 may be made of sintered glass. Compressed gas enters from source 10, passes through the wall 8 and entrains powder through duct 20 and into pumping column 22 from which the powder emerges as an accelerated and focused stream to intersect a particle beam 42.
Patent GB-1248479-A (GB)
Title: Improvements in tuning indicating
IPC: H03J1/04
Filed: 1968-12-31
Abstract: 1,248,479. Radio receiver dials and scales. GENERAL ELECTRIC CO. 31 Dec., 1968 [2 Jan., 1968], No. 61832/68. Heading H3Q. [Also in Division G1] In a tuning indicator assembly comprising a casing 10 having a set of indicia 22 positioned adjacent an aperture 20 and a tuning member in the form of a disc or substantial sector of such a disc 28 rotatably mounted in the casing so that a portion 30 of the edge of the member 28 protrudes from the casing to permit manipulation of the member 28 a portion of the face of the member 28 is visible through the aperture 20 and has visually contrasting regions 46, 48 with an inter-region boundary serving as a tuning indication line such that when the member 28 is rotated the indication line when viewed through the aperture moves along the indicia. The indication line may be diametrically of the member face (Fig. 2, not shown), curved, such as 8-shaped or a discontinuous straight line not diametrically extending. The tuning disc 28 may be circular, as shown or polygon or a substantial sector of such a shape shaped. By the arrangement of the indication line and the indicia 22 a fine tuning effect is produced. In a multiband radio scale indicia 22 may be placed along both longitudinal edges of the window 20 and or printed on the associated crystal or transparent strip 24. Also a plurality of windows may be used. The window 20 may be annular or trapezoidal and may extend vertically, at an angle or horizontally as shown. The portable radio receiver shown includes an ON-OFF and volume control 38, a capacitor (44, Fig. 3, not shown), driven by the tuning disc 28, a loud-speaker (40), a battery, receiver circuitry and antenna within the casing.
Patent GB-664440-A (GB)
Abstract: 664,440. Self-wringing mops. LJUNGDAHL, O. G. Feb. 15, 1949, No. 4144/49. Class 19 An implement for cleaning floors, walls and the like comprises a sponge fastened to a handle and a device for squeezing the sponge in order to remove moisture which has been absorbed, said squeezing device consisting of parallel rollers supported at a fixed distance apart and adapted when lowered over the sponge to press the same between them and the rollers being mounted on a frame which is displaceable on and along the handle. In the drawing the sponge 3 is carried by a fastener 2 attached to the handle 1. The handle 1 is enclosed for part of its length by a tube 7 to the lower end of which a forklike frame 8 is attached, the lower ends of its prongs carrying the rollers 9. A handle 10 protrudes from the tube 7 for lifting and turning the frame 8. The fastener 2 is provided with a wedge-like guide cam 11 which when the frame 8 is being lowered after being lifted on the handle will cause the rollers to fall on either side of the sponge.
Patent GB-2001188-A (GB)
Title: Electronic timepiece
IPC: G04G13/02
Filed: 1978-06-21
Abstract: The electronic timepiece comprises circuits within an integrated circuit for effecting at least one auxiliary function associated with information supplied to their inputs and, programming circuits for programming and memorizing the said information. A system applied to the timepiece makes it possible to consult and reprogram manually the memory from outside the timepiece, as well as memorizing the state of this memory in the absence of feed voltage, for as long as necessary.
Patent GB-2005404-A (GB)
Title: "Dust Monitor"
IPC: G01N21/21
Filed: 1978-07-04
Abstract: A fluid carrying particles such as dusty air, is passed as indicated by arrows 28a, 30a between crossed light polarizers 16 and 20. Light 12a is directed through the polarizers 16, 20 to a photodetector 26. Particles in the interpolarizer region depolarize the light which is then detected by the photodetector to provide an indication or particle concentration. <IMAGE>
Patent GB-2030770-A (GB)
Title: Timing device
IPC: H01H43/10
Filed: 1978-09-21
Abstract: A microwave oven timer has a cam 15 and a double gear 26, 27 manually rotatable together by shaft 13 to select a cooking time, and a motor (not shown) for driving shaft 17 and returning the cam and gear back to a zero position at which microswitch 16 is OFF. The return speeds include a faster speed provided by gear 26 which is permanently engaged with friction-driven gear 20, and a slower speed provided by gear 27 which has teeth over only part of its circumference, and which comes into engagement with friction-driven gear 21 only when the cam is rotated to select more than 5 minutes cooking time. In order to enable the engagement of gear 27 to take place smoothly the first few teeth (30, Fig. 3) are rendered radially resilient by a circumferential slot (31) thereunder. A lever 34, interposed between cam 15 and button 35, strikes a bell (33, Fig. 1) when cam 15 opens switch 16. <IMAGE>
Patent GB-2006305-A (GB)
Title: Floor cover for an animal stall
IPC: A01K1/015
Filed: 1978-09-22
Abstract: A floor cover for an animal stall comprising a grid made up of one or more grid elements each having an upper surface, having through openings (6) for the passage therethrough of animal faeces, and formed of or faced with a wear- resistant, soft to medium hard plastics material. Each grid element can be cast plastics material with embedded longitudinal (7) and transverse (9) metal reinforcing members, or can be a metal sheet dip coated with plastics material or can be formed by apertured plates of cast plastics secured to metal bars. Each grid element has downwardly depending edge portions on which it is supported over a recess in the stall floor having a discharge opening for the faeces. The openings are preferably slots (6) disposed in rows with the slots of one row off-set with respect to slots of adjacent rows. <IMAGE>
Patent GB-2034395-A (GB)
Title: Improvements in or relating to motor vehicle door locks
IPC: E05B65/32
Filed: 1978-11-13
Abstract: A lock for a motor vehicle door comprises a forked bolt 7 whose formed by a front arm 13 and a rear arm 14. The forked bolt 7 is disposed in a housing 1 closed by a cover 2 and engages with a catch whose catching element 4 comprises a spindle 4 which engages in the bolt fork. There is provided a pawl 15, which is pivotable about a spindle 16 supported by the housing 1, for locking the bolt 7 in the closed position as a result of locking a first ratchet tooth 30 against the rear arm 14 of the bolt along a contact surface 31. A second tooth 24 of the pawl 15 is located, in the closed position, adjacent and in front of the front arm 13 of the bolt 7 and spaced therefrom. <IMAGE>